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output.h

/*    $NetBSD: output.h,v 1.16 2002/11/24 22:35:42 christos Exp $ */

/*-
 * Copyright (c) 1991, 1993
 *    The Regents of the University of California.  All rights reserved.
 *
 * This code is derived from software contributed to Berkeley by
 * Kenneth Almquist.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 * 3. All advertising materials mentioning features or use of this software
 *    must display the following acknowledgement:
 *    This product includes software developed by the University of
 *    California, Berkeley and its contributors.
 * 4. Neither the name of the University nor the names of its contributors
 *    may be used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
 * SUCH DAMAGE.
 *
 *    @(#)output.h      8.2 (Berkeley) 5/4/95
 */

#ifndef OUTPUT_INCL

#include <stdarg.h>
#ifdef USE_GLIBC_STDIO
#include <stdio.h>
#endif
#include <sys/types.h>

struct output {
#ifdef USE_GLIBC_STDIO
      FILE *stream;
#endif
      char *nextc;
      char *end;
      char *buf;
      size_t bufsize;
      int fd;
      int flags;
};

extern struct output output;
extern struct output errout;
extern struct output preverrout;
#ifdef notyet
extern struct output memout;
#endif
extern struct output *out1;
extern struct output *out2;

void outstr(const char *, struct output *);
#ifndef USE_GLIBC_STDIO
void outcslow(int, struct output *);
#endif
void flushall(void);
void flushout(struct output *);
void outfmt(struct output *, const char *, ...)
    __attribute__((__format__(__printf__,2,3)));
void out1fmt(const char *, ...)
    __attribute__((__format__(__printf__,1,2)));
int fmtstr(char *, size_t, const char *, ...)
    __attribute__((__format__(__printf__,3,4)));
#ifndef USE_GLIBC_STDIO
void doformat(struct output *, const char *, va_list);
#endif
int xwrite(int, const void *, size_t);
#ifdef notyet
#ifdef USE_GLIBC_STDIO
void initstreams(void);
void openmemout(void);
int __closememout(void);
#endif
#endif

static inline void
freestdout()
{
      output.nextc = output.buf;
      output.flags = 0;
}

#define OUTPUT_ERR 01         /* error occurred on output */

#ifdef USE_GLIBC_STDIO
#define outc(c, o)      putc((c), (o)->stream)
#define doformat(d, f, a)     vfprintf((d)->stream, (f), (a))
#else
#define outc(c, file)   ((file)->nextc == (file)->end ? outcslow((c), (file)) : (*(file)->nextc = (c), (file)->nextc++))
#endif
#define out1c(c)  outc((c), out1)
#define out2c(c)  outcslow((c), out2)
#define out1str(s)      outstr((s), out1)
#define out2str(s)      outstr((s), out2)
#define outerr(f) (f)->flags

#define OUTPUT_INCL
#endif

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